Displaying 2 results from an estimated 2 matches for "mycolnames".
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2004 Mar 23
1
help on data.frames/data.entry
Dear R-help,
I have a matrix D of dimensions 200 x 26; rows are my cases and columns are
my variables. I would like to create a data.frame "DF" with row.names=
myrownames (this is a vector of characters of length 200) and column names
"mycolnames" (a vector of characters of length 26). I could find the option
in data.frame for naming rows, but not for naming columns. So I did:
> data.entry(D, Names= mycolnames)
> DF <- data.frame(D,row.names=myrownames)
but after the first command (i.e. > data.entry(D, Names= mycolnames)...
2007 Nov 25
1
Constructin a call of function including permutation of column names - how to escape parentheses?
...ot;), item2=c("B","C")), item3=...):
The individual vectors in the list are permutations of colnames of a
dataframe.
The trouble is that I am not able to handle escaping of parentheses
correctly.
I was trying the following:
library(gregmisc)
combinations.2<-combinations(12,2,mycolnames)
combinations.2.call<-apply(combinations.2,1,function(x){do.call(paste,c(
as.list(x),sep="\",\""))})
combinations.2.call<-paste("c(\"",combinations.2.call,"\")",sep="")
but now calling call("list",combinations.2.list) does...